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Archive 2009 · Pics from ZF21
  
 
weekh
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p.2 #1 · Pics from ZF21


No flare:


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No CA:


This image is copyrighted by the owner





Edited on May 05, 2009 at 11:46 AM · View previous versions


May 05, 2009 at 11:42 AM
TimSelim
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p.2 #2 · Pics from ZF21


ZF21 on 5D















May 05, 2009 at 11:45 AM
TimSelim
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p.2 #3 · Pics from ZF21


Flare comparison: CY21 at f11








May 05, 2009 at 11:47 AM
TimSelim
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p.2 #4 · Pics from ZF21


... vs ZF at f11








May 05, 2009 at 11:47 AM
TimSelim
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p.2 #5 · Pics from ZF21


CY vs ZF (CY first)















May 05, 2009 at 11:50 AM
TimSelim
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p.2 #6 · Pics from ZF21


100% crop mid-frame, CY first















May 05, 2009 at 11:51 AM
TimSelim
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p.2 #7 · Pics from ZF21


100% crop lower right (CY first) - shot at f11 btw)















May 05, 2009 at 11:53 AM
TimSelim
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p.2 #8 · Pics from ZF21


100% crop upper right CZ then ZF















May 05, 2009 at 11:55 AM
TimSelim
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p.2 #9 · Pics from ZF21


No sharpening or CA correction was applied to any of the crops I just posted.
I shot using a tripod but didn't bother with MLU ot or remote - so just a quick and crude comparison.
Processed with ACR. Kindai CY-EOS adaptor on the Contax, Kindai NF-EOS on the ZF.
On the 5D I've found no real difference between my copies of the Contax and the ZF in terms of resolution, despite plenty of pixel peeping.


May 05, 2009 at 12:02 PM
weekh
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p.2 #10 · Pics from ZF21


This is taken with the CY21:


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This image is copyrighted by the owner




The flare from the CY21 consists of a small little yellow hotspot, which I find it to be very unsightly.


The shape of the star burst from the new ZF21mm also looks much nicer!


May 05, 2009 at 12:05 PM
cavewalker
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p.2 #11 · Pics from ZF21


@TimSelim
could you please make a shoot against a flat wall or similar at f2.8? I want to see how sharp the edges are full open... thx

May 05, 2009 at 01:07 PM
AGeoJO
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p.2 #12 · Pics from ZF21


The presence of hotspots/highlights in the shape of dots or the shape of the aperture taken with both CY/ZF lenses is unavoidable. But contrast robbing veil as shown in TimSelim's f/11 shots using both versions doesn't look too good. In my experience, the Nikkor 14-24mm handles this situation better. YMMV, of course.

May 05, 2009 at 02:47 PM
ewadler
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p.2 #13 · Pics from ZF21


Is it me or is the CY a tad bit wider(shorter focal length)?

TimSelim wrote:
CY vs ZF (CY first)


May 05, 2009 at 02:57 PM
 



Empire
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p.2 #14 · Pics from ZF21


ewadler wrote:
Is it me or is the CY a tad bit wider(shorter focal length)?

TimSelim wrote:
CY vs ZF (CY first)


Assuming images taken at exactly the same spot it looks like you're right!



May 05, 2009 at 03:40 PM
Maximilian
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p.2 #15 · Pics from ZF21


Is it me or is the CY a tad bit wider(shorter focal length)?

Well, this agrees with the Zeiss specifications of the two lenses: the diagonal field of view is 92° for the C/Y and 90° for the ZF. So a very slight difference, but still.

May 05, 2009 at 03:43 PM
TimSelim
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p.2 #16 · Pics from ZF21


ewadler - Yes, my CY is just a tiny bit wider than my ZF - I'm pretty sure that isn't down to sample variation.

AGeoJO - The veiling flare does look bad in the samples I posted, but I was deliberately going for a worst-case example there - bright sun, dark foreground, sky over-exposed.

In 'real' shooting situations I've found the ZF handles flare better than the CY.

I'm looking forward to trying the 14-24 myself, it does look very promising and to my eyes it draws the sun nicely as well.

In general I don't see the ZF21 as any 'better' or 'worse' than the CY21. For me they can both give an image that's sharp right across the frame, they're virtually free of CA, they suffer from the same distortion and they're both expensive.

The ZF seems a tiny bit warmer and more contrasty, the CY's true FL is a fraction shorter.
For my money the biggest difference is that you can mount the ZF on a Nikon body, you can't do that with a CY21 (at least not without major surgery).

Going back to flare, my little Nikkor 20mm f3.5 is the best lens I've ever had at shooting into the sun. Not as sharp as the ZF or the CY, but it's no slouch.

20mm f3.5 on 5D, f16 (blend of 3 exposure-bracketed images)









May 05, 2009 at 04:02 PM
TimSelim
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p.2 #17 · Pics from ZF21


Cavewalker,
I hope this will help. ZF21 handheld at ISO 1600, f4, on 5D. Some crops will follow.
Believe it or not those shelves are pretty much straight...










May 05, 2009 at 04:14 PM
TimSelim
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p.2 #18 · Pics from ZF21


100% -- 1 - upper right corner, 2 - lower left corner, 3 mid-frame

Handheld snapshot remember, nothing scientific.






















May 05, 2009 at 04:16 PM
edwardkaraa
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p.2 #19 · Pics from ZF21



I am already subscribed to Lloyd's tests and as far as I know, the 16-35 has not been tested. Even if it was, it can be mounted only on a Sony body so how could he compare it to other systems. I'm not sure how can you make such statements about a lens that obviously you have not used.



wiseguy010 wrote:
edwardkaraa wrote:

Excuse me but calling the 16-35 a poor lens is a bit extreme as in my own findings it should at least be as good as the Nikon and the ZF 21 in the range of 16 to 28mm, and imo probably better than both. The only weak point is at 35mm. What I'm talking about is the very extreme corners which cover less than 1-2% of the entire image area. Have you ever used one or just making uneducated guesses?


The 16-35 is much worse than both the Nikon and the Zeiss. There is a difference of day and night. I think you should subscribe to the tests from Lloyd Chambers so you can see for yourself. He actually tested these 3 lenses together (and the Voigtlander 20/3.5). The Nikon and the Zeiss are both at a very high level that no other wide-angle DSLR-lens can reach at this moment. As I like the colours and contrast of the Zeiss more than the Nikon I have chosen for the Zeiss.



May 05, 2009 at 04:38 PM
Lotusm50
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p.2 #20 · Pics from ZF21


I think he is talking about the 16-35L II Canon lens. Lloyd does do a comparison with this lens.

May 05, 2009 at 04:41 PM
edwardkaraa
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p.2 #21 · Pics from ZF21




That makes it clear! If this is the case, I would rather agree with him

Lotusm50 wrote:
I think he is talking about the 16-35L II Canon lens. Lloyd does do a comparison with this lens.



May 05, 2009 at 04:48 PM
edwardkaraa
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p.2 #22 · Pics from ZF21


TimSelim's sample are very nice and sharp, but of course taken with a 12mp camera. I would be interested to see some 100% crops from weekh's 5D2 to assess sharpness on the latest high mp cameras.

May 05, 2009 at 04:50 PM
TimSelim
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p.2 #23 · Pics from ZF21


CZ vs ZF at f2.8 on 5D focussed at infinity, shot with tripod. Straight out of ACR with sharpening set to mty default of 10, 0.5, 10, 0.
With both lenses the edges went sharp as I focussed closer, and the distance went soft. With both lenses, on the 5D I quite easily managed to get the whole frame sharp from about 2m out to infinity, by about f8.
CY first ....















May 05, 2009 at 04:50 PM
TimSelim
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p.2 #24 · Pics from ZF21


mid frame 100%, CY first ...















May 05, 2009 at 04:52 PM
TimSelim
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p.2 #25 · Pics from ZF21


Lower corners, CY first















May 05, 2009 at 04:53 PM




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